Qt: Tiny improvements to Cam/Mic permissions

rpcs3/rpcs3qt/camera_settings_dialog.cpp

@@ -231,7 +231,7 @@ void camera_settings_dialog::handle_settings_change(int index)
 	}
 
 #if QT_CONFIG(permissions)
-	QCameraPermission permission;
+	const QCameraPermission permission;
 	switch (qApp->checkPermission(permission))
 	{
 	case Qt::PermissionStatus::Undetermined:

rpcs3/rpcs3qt/main_window.cpp

@@ -112,7 +112,7 @@ extern void check_microphone_permissions()
 #if QT_CONFIG(permissions)
 	Emu.BlockingCallFromMainThread([]()
 	{
-		QMicrophonePermission permission;
+		const QMicrophonePermission permission;
 		switch (qApp->checkPermission(permission))
 		{
 		case Qt::PermissionStatus::Undetermined:

rpcs3/rpcs3qt/qt_camera_handler.cpp

@@ -186,12 +186,12 @@ void qt_camera_handler::start_camera()
 	}
 
 #if QT_CONFIG(permissions)
-	QCameraPermission permission;
+	const QCameraPermission permission;
 	switch (qApp->checkPermission(permission))
 	{
 	case Qt::PermissionStatus::Undetermined:
 		camera_log.notice("Requesting camera permission");
-		qApp->requestPermission(permission, [this]()
+		qApp->requestPermission(permission, this, [this]()
 		{
 			start_camera();
 		});